Problems with bypass function Korg Pandora 3

Unfortunately I've got some problems with the 'bypass' option. According the users manual I noticed that you always can switch for bypass when I use an effect during a song.

But I lways have problems withe volume of this bypassoption. When I use an effect it's ok. But when I like to play 'naturally' the bypass function doesn't look like an option for me. Cause you volume makes a dive. Do you guys have experience with this, and moreover dio you have any solutions?

Hey guy i orderd one from musicians friend so as soon as i get it in the mail i will try to help you out! I didnt really buy this for the effects i bought mine so i can use the drum patters and bass canceller while iam on the road! But i will try to help!